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Choke on, off, on off, on, off, on off?..

  • Thread starter Thread starter nert
  • Start date Start date
N

nert

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Choke on, off, on off, on, off, on off?..
1982 GS1100glz. Stock, original, pampered and maintained. Low mileage.

After bike has been sitting overnight or all day, I apply choke lever, turn key on, pull clutch lever, press start button. Engine starts immediately and flares way up. I have to quickly push choke lever back to at least midway, then engine wants to dies, then I have to yank the choke closed again before stall, on and off this way many times to keep the engine from screaming or stalling. VERY difficult to find middle ground. Once warm.
Bike runs smooth powerful and fantastic otherwise. If it wasn?t for the tach I wouldn?t even know the engine was running at most of the time. Silky smooth. At 75 mph the mirrors are as buzz free as a Cadillac.
Carbs have been cleaned and set. Intake o-rings new last year. (did it last year too, and the year before that, and so on.) Doesn?t have any signs of air leak. Fuel bowl level? or is it all in the choke circuit. Or is this normal, and my other (2), abby normal?

My other (2) 82? GS1100glz, start right up, and are easily regulated with the choke lever. Almost like computer controlled fuel injection. Once started I just keep below 2000 rpm, smooth and faultless, and slowly reduce choke as they warm up.

thanks for your help
 
Most likely, there are a couple of idle passageways restricted or blocked.

Earl
 
When warm, engine idles smooth, evenly and with out incident. Perfectly.

The starter system I believe, is a different fuel air circuit then idle and slow speed passages.

I would have to think the cylinder(s) are receiving too much air. Otherwise there couldn?t be such arise in rpm. The starter circuit gets much of its air from the action of the starter plunger. If the plunger seals on the rod side are bad could that pass enough air to do as indicated. Doesn?t the starter circuit draw its fuel from the cooper tube that?s protrudes down when you remove the fuel bowl?
 
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